21217001

素因数分解:

${\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{181}}^1$

素因数の和:392

約数の個数: 16

約数和(自身を含む): 23482368

約数和(自身を除く): 2265367

約数列:

[1, 13, 71, 127, 181, 923, 1651, 2353, 9017, 12851, 22987, 117221, 167063, 298831, 1632077, 21217001]

約数ペア:

[(1, 21217001), (13, 1632077), (71, 298831), (127, 167063), (181, 117221), (923, 22987), (1651, 12851), (2353, 9017)]